Question

if 2k+ 3m =12, km=4, find the value of 4k² + 9m²

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Answer 1

Answer:

96

Step-by-step explanation:

(2k+3m)^2 = (12)^2

4k^2+9m^2+2*2k*3m = 144

4k^2 + 9m^2 + 12km = 144

4k^2 + 9m^2 = 144-48

4k^2 + 9m^2 = 96

hope it helps